Apparatus for actuating hydrostatic presses



(No Model.) I e Sheets-Sheet 1. J. H. VAILE.

APPARATUS FOR AGTUATING HYDROSTATIG PRESSBS, 'No. 424,040. Patented Mar. 25, 1890.-

Zminewas: miezz/hz':

wliwrnays.

6 Sweets-Sheet 2.

' '(NoModeL') J. H. VAILE. APPARATUS FOR AGTUATING HYDBOSTATIG PRESSES.

Patented Mar, 25, 1890.

. jaw/'27.- W 034% 20527163565.- 21/. a firdims'lm.

f flab Alfiajweys.

N. FETERSY Phowlikhognphsr. Wuhinllm D, C.

(No Model.) f e Sheets-Sheet a.

J. H; VAILE] APPARATUS FOR AGTUATING HYDROSTATIG PRESSBS. No. 424,040. Patented Mar. 25, 1890.

Z55 Aliza/mega.

Sheets-Sheet 4 J H VAILE JIZ RATUS FOR AOTUATING HYDE,

. M M k V aw N w (No Model.) 6 SheetsSheet 5.

J. H. VAILE. APPARATUS FOR AGTUATING HYDROSTATIG PRESSBS. No. 424,040. Patented Mar. 25, 1890.

(No Model.) 6 Sheets-Sheet 6.

J. H. VAILE. APPARATUS FOR AGTUATING HYDROSTATIG PRESSES. No. 424,040. f Patented Mgr. 25, 1890.

GEIlI II h lviineflsem j z 20,6. Jirdimshm g K forming wherein a liquid is bodied in UNITED STATES PATENT OFFICE.

JOHN H. VAILE, OF DAYTON, OHIO.

SPECIFICATION forming part of Letters Application filed July 24, 1889.

To all whom it may concern:

Be it known that I, JOHN H. VAILE, a citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements .in Apparatus for Actuating Hydrostatic Presses, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings,

part of this specification.

My invention relates to all classes of presses 7 used to exert the pressure; and, as coming primarilywithin the 0bect of my invention, it relates to hydrostatic presses for compressing substances of a very soft or plastic nature-such as lard, par-affine, and the like-and more particularly for expressing oil from meal, seeds, or other oleaginous substances.

It has for its object the improved construct tion of the apparatus by which the operation is rendered certain and as nearly perfect as possible.

The novelty of my invention will be herein set forth, and specifically pointed out in the claims.

In the accompanying drawings, Figure 1, Sheet 1, is an elevation, partly in section, of so much of the apparatus as is necessary to illustrate my invention. Fig. 2, Sheet 1, is a modified form of the variable accumulator embodied in the apparatus shown in Fig. 1. Fig. 3, Sheet 2, is an enlarged sectional elevation of the automatic valve mechanism emthe construction shown in Fig. 1. Fig. 4, Sheet 8, is a plan view of the valve mechanism of Fig. 3. Fig. 5, Sheet 3, is a sectional elevation through the dotted line w 00 of Fig. 4, looking in the direction of the arrow. Fig. 6, Sheet 4, is an enlarged sectional elevation through the dotted line 11] y of Fig. 4, and looking in the direction of the arrow. Fig. 7, Sheet 5,is an enlarged sectional elevation of one of the hand-controlling valves embodied in the construction shown in Fig. 1. Fig. 8, Sheet 6, is a plan view showing the connection of the apparatus with a set of four presses.

The same indicate identical parts in all the figures.

in this instance steam-pumps of the usual letters of reference are used to Patent No. 424,04ofama March 25, 1890.

Serial No. 318,521. (No model.)

or any suitable construction, pumping from a supply-tank 0, containing the liquid-usually oilfor actuating the presses. D is the cylinder 'of a hydrostatic press of the usual or any suitable construction, and E-its piston, to which the press-platen (not here shown) is secured. F is a strong air-tight vessel, which I designate a variable accumulator, and into which the pump B pumps through a pipe G, provided with a check or other valve a.

Interposed and properly supported between" the variable accumulator and the press is the valve mechanism illustrated in Figs. 3, 4, 5, and 6, where H isthe valve-casing, having an inlet-passage 1), into which a pipe 0 from the variable accumulator enters. From the passage b there is a vertical passage d, having seated therein a check-valve e. The passage cl opens into a horizontal passage f, having an outlet, from which a pipe 0 extends onits way to the press. A pipe 1 extends from the pump A and enters a passage g in the casing H, which passage communicates by a port h with the passage f,

plug K in the top of the casing and projecting abovethe same. L isa similarly-placed plunger, whose lower end rests upon or may be connected to the check-valve 6. Between lugs i on the top of the casing is pivoted a lever-arm M, which constantly bears upon the valve J on one side of its pivotal point, and is directly over the plungerL on the opposite side. The projecting end of the lever M on the side of the valve J is provided with an adjustable weight N for holding the valve J down to its seat, except as hereinafter explained. Between the weight and valve J there is a third plunger O,directly under the lever L, and held up in contact therewith by a spring j in the bottom of the core 10, containing said plunger. 6, extends laterally from the bottom of the bore 7c, and communicates with a second bore m, containing a vertical plunger P, whose lower end serves as a valve to close the pas sage Z, except as hereinafter explained.

second weighted lever Q, Figs. 4, 5, and 6,pivoted to lugs n on the casing extends from the bottom of thebore m, and

communicates by a transverse passage p with said port being provided with a vertical valve J, packed through a 7 H, serves to hold .down the plunger P. A vertical passage 0 Referring to Fig. 1, A and B are two pumpsa longitudinal passage q, extending to and communicating with a vertical passage q, entering the passage f between the check-valve e and plunger J. The borek has asmall outlet-passage r, from which a return-pipe 8 extends baek to the tank 0, and is provided with a valve or stop-cock tnear the casing ll. The pipe 0', leaving the casing I-I, extends to and enters the hand-valve casing R,Fig. 7, at 10 it. This casinghas two screw-valves S and T, the former for admitting the liquid to the press through the passages r, w, and z, and pipe 0'', extending from the latter passage, and the latter for permitting the liquid to es- 1 5 cape from the press after the pressing operation has been completed through. the returnpipeUto the tank 0. Interposed between the passages o and w is a check-valve a, which is closed by the back-pressure when the valve T is opened.

A B, Fig. 1, are the steam-supply pipes for the pumps, and they are provided with red ucing-valves.0' of any suitable construction.

In Fig. 8 I have shown the manner of connecting; a series of presses D with the mechanismsabove described, and I-would thus describethe operation of the apparatus.

The pump A is a high-pressure pump, adj usted, for illustration of the operation of the apparatus,.to a constant duty, say, of four thousand. pounds, while the pump B is a lowpressure pump, adjusted, for illustration of the operation, to a duty, for instance, that cannot exceed 3 5 weight N. isadjusted to overcomea pressure of four thousand pounds exerted on. the under side of the valve J, combined with. a pressure of slightly less than seven hundred pounds, while theweight onthe lever Q is adjusted to overcome just seven hundred.

pounds exertedon the under side of theplunger P. Theaccumulator is about two-thirds filled with oil, and the tank 0 is also sup.- pliedwith oil.

oil-meal, cotton, or linseed applied in layers in the usual way, and the operation of expressing the oil is ready to be begun. for the first time,,steam is admitted to both pumps.

The pipe I of'the pump A being closed by its valve J at a pressure of'the weight N, which cannot be overcome by the pressure'from the pump Aacting on the under side of the valve J alone, said pump remains stationary, while 5 the pump. B begins pumping from thetank G into the accumulator F, gradually filling said accumulator and compressing the air therein until an indicator E shows the internal pressure to be seven hundred pounds.

This point beingreached,.the pump B stops, because, as before explained, it is so adjusted that it cannot overcome a greater resistance.

The attendant now opens the valve S of the press. to be operated,.the valves T being all closed, and also opens a valve F, Fig. 8, in the pipe 0. Theoil at once rushes through the pipe 0 and passages 12 (Z, lifts the check,-

in the accumulator decreases weight of the lever Q,

' and overcomes seven hundred pounds. The

to permit l pipes from under the plunger 0, which "isthen forced down by the weight N and the Supposing that the material in the press isvalve e, and passes on through the passage f and pipe 0' into the casing R, where it lifts the check-valve a and continues on through the passages 20 z and pipe 0 to the press, and raises the platen rapidly, but with a constantly-decreasing pressure, so that by the time working contact is made the pressure is only just suificient to express the free and easily-expressed oil without bursting the bags and squeezing out the meal. As the pressure by the escape of the oil to the press, the pump B begins to work again and gradually restores the pressure until the meal in the press having become condensed, and the pressure in the accumulator having been restored to seven hundred pounds, the oil through the passages q, q, p, and 0 instantly counterbalances the and, raising the plunger-valve P, passes on under the plunger 0, and acting with the pressure on the valve J raises said plunger and valve simultaneously the weight N. This at once admits the high pressure from the pump A, which continues to act on the press until the pressing operation is completed. As soon as the high pressure is admitted the check-valve ,e is instantly closed both by ure and by the action of the plunger L, as will be readily understood, and the pump-B continues to work, as before described, until a pressure of seven hundred pounds is re-established in the accumulator,

the back-presslever M on the when it again stops, though the pumpA eontinues its work. When the pressing has been :completed', the attendant closes the valves S and F and opens the oil in the press U to the tank G, and

the valve T, whereupon escapes through the pipe the press is thus let The attendant next opens the cook 15, the escape of the oil through the down.

valve J? is thereby reseated. The cook 25 is at once closed and the operation is ready to be repeated.

In Fig. Sallof the casings R, of which there is one for each press D are connected in front of thevalve-seat oi the valve S by pipes b. so that any press of the series may be acted on as above described.

The substitute form of variable accumulator shown in Fig. 2 is merely a packed piston in a cylinder connected to both the valvecasingI-I and pump B, and the piston is loaded with a series ofpick-up weights, as described in my patents of November 26, 1889, Nos. 415,750 and 416,020.

Having thus fully described my invention, 1' claim- 1. The combination, with a hydrostatic press having a source of high-pressure supply and a variable accumulator having a source of low-pressure supply, of interposed valve mechanism consisting of a casing con- .nected with the variable accumulator and source of high-pressure supply, with acheck- 7 valve interposed between said connections,-

a plunger-valve for the high-pressure inlet held by a constant Weight, and two independent plungers acted on by the maximum pressure from the variable accumulator to overcome said constant weight and release the plunger-valve for the admission of the high pressure, substantially as described.

2. In hydrostatic press apparatus,the valvecasing H, provided with the inlets b and g,-

outlet 0, and passages d, f, q, q, p, 0, and Z, a check-valve e, seated in the passage d, the

plunger-valve J and plungers O P, and the Weighted levers M Q, for the-,plungersiP 0i and valve J, substantiallyin the manner and for the purpose described 3. In a valve-casing H, substantially as described, the arrangement of the check-valve 6 with its plunger L, the valve J and plunger 0, and the superimposed weighted lever M, pivoted at a point between the valve J and plunger L, as and for the purpose specified.

4. The combination, with a high-pressure pump, of a low pressure and its accumulator, a valve-case, and passages connecting it with the accumulator and with the press, two differently-Weighted valve devices 11 ormallyheld closed by independent weights, and passages connecting, respectively, the passage from the accumulator with the lighter-Weighted valve device, the said valve device when opened with the heavier-Weighted valve deand suitable pipes or passages connecting said pumps, accumulator, valve mechanism, valve-casing R, and press.

to JOHN IL-VAILE. Witnesses:

CHARLES BILLOU,

W'. O. J IRDINSTON. 

